I was recently given a 1968 Larson 15 ft V hull with a Johnson Super Sea Horse 50 mod# VS4-11 sn# 1830432. Can anyone tell me what year this motor was made and what the cylinder compression should be? Any help would be greatly appreciated.
V4S-11 50 1959 <br /><br />Compression should be at leat 90-100 PSI and more importantly, even on all cylinders. Within 10% of each other is close enough.
